Sterile work box



FIG. 1 is a front, right-side perspective view of an embodiment of a sterile work box showing our design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed lines shown in the drawings represent portions of the sterile work box that form no part of the claimed design. 

CLAIM The ornamental design for a sterile work box, as shown and described. 